package LuoGu.入门.NAnd1;

import java.util.*;

public class Main {
    public static void main(String [] args){
        Scanner a = new Scanner (System.in);
        int T = a.nextInt();
        double Pi = 3.141493;
        if (T == 1) {
            System.out.println("I love Luogu!");
        } else if (T == 2) {
            System.out.println((2+4)+" "+4);
        } else if (T == 3) {
            System.out.println((14/4)+"\n"+(14/4*4)+"\n"+(14%4));
        } else if (T == 4) {
            double t = 500,n = 3;
            System.out.printf("%.3f",t/3);
        } else if (T == 5) {
            System.out.println((260+220)/(20+12));
        } else if (T == 6) {
            System.out.printf("%f",Math.sqrt(6*6+9*9));
        } else if (T == 7) {
            System.out.print((100+10)+"\n"+(110-20)+"\n"+0);
        } else if (T == 8) {
            double r = 5;
            System.out.println(2*Pi*r);
            System.out.println(Pi*r*r);
            System.out.println(3/4*Pi*r*r*r);
        } else if (T == 9) {
            int x=1;
            for(int i=0;i<3;i++) {
                x=(x+1)*2;
            }
            System.out.println(x);
        } else if (T == 10) {
            System.out.print(9);
        } else if (T == 11) {
            System.out.printf("%f",100/3.0);
        } else if (T == 12) {
            System.out.println('m'-'a'+1);
            System.out.println("R");
        } else if (T == 13) {
            System.out.print(Math.pow((4/3)*Pi*Math.pow(4,3)+(4/3)*Pi*Math.pow(10,3),1/3));
        } else if (T == 14) {
            // 请自行完成问题 14 的代码
            System.out.print("50");
        }
    }

}
